<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>LS10</title>
    <script src="js/demo12.js"></script>
</head>
<body>
    <input type="text" id="inputID">
    <input type="button" onclick="Foo()" name="Test" value="测试">
    </br>
    <label>输出结果：</label>
    <label id = "labelID">_______</label>
</body>
</html>